<?php 

$x=5;
switch ($x) {
	case '1':
		echo "输出num1";
		break;

	case '2':
		echo "输出num2";
		break;

	case '3':
		echo "输出num3";
		break;
	
	default:
		echo "No num between 1 and 3 ";
		break;
	
}


 ?>